Base for supporting drill presses on columns



Sept. 24, 1968 J. F. GILL 3,402,908

BASE] FOR SUPPORTING DRILL PRESSES ON COLUMNS Filed July 18, 1966 I NVEN TOR.

JOHN F: GILL United States Patent 3,402,908 BASE FOR SUPPORTING DRILLPRESSES ON COLUMNS John F. Gill, 1255 Fairlane Ave., Brookfield, Wis.53005 Filed July 18, 1966, Ser. No. 566,448 2 Claims. (Cl. 248-231)ABSTRACT OF THE DISCLOSURE A portable base support adapted forengagement with the vertical portions of a tubular scaffold including avertical angle iron adapted to lodge against the tubular member, a chainelement fixed by one end to the angle iron and utilized to embrace saidtubular member, and adjusting means for tightening said chain.

This invention relates to improvements in base supports, and moreparticularly to a novel base for supporting drill presses on columnssuch as tubular scaffolds or the like.

During construction work it is often necessary to use a tool or otherinstrumentality requiring a stable support such as a drill press, andthere is commonly no convenient place or means of securing such a tool.Also in construction work, the use of tubular scaffolding is verycommon, and it is the object of the present invention to provide aconvenient and efficient base support for a drill press or the likewhich will be stable when releasably secured to a column of a tubularscaffold. A further object of the invention is to provide a verticalangle member as a base to be lodged against a vertical member of aconstruction scaffold, with a chain element secured to adjustable meansby one end for tightening said chain, the latter being passed about saidvertical scaffold member with its opposite or free end being releasablyheld in a notch in a member secured to said vertical angle base member.

Other and further objects of the invention will appear as thedescription proceeds, reference being had to the accompanying drawing,in which:

The drawing is'a view in perspective of a base for supporting drillpresses on columns, a portion of a column on which it is mounted beingshown in elevation.

Referring more particularly to the drawing, the numeral refers to avertical column as in a tubular scaffold assembly. A heavy angle iron 11is lodged against the column 10 and held in place by means of the chainelement 12.

A pair of relatively smaller angle iron members 13 and 14 are brazed orotherwise secured to and project beyond one segment of the angle iron 11on the outside thereof, and serve as keepers for the solid shaft member15 which is bored at 16 to accommodate the threaded element 17 which isengaged at one end 18 with the chain 12. On the opposite segment of theangle iron 11 is a relatively small ice angle iron 19 disposed on theouter face of said segment and notched at 20 to facilitate binding ofthe chain 12 therein. The threaded element 17 is provided with a nut 21which may be taken up to releasably secure the angle iron 11 on thevertical column 10 by increase to maximum tension of the chain element12 as it embraces the column 10. A bar 15a extends upwardly from theback of the angle iron 11 integral at its upper end with a knurledstationary member 22 secured by releasable means 23 to a similar knurledelement 24 on an end of member 25.

On the opposite end of member 25, a similar knurled element 26 isreleasably fixed to knurled element 27 which latter is aflixed tostandard 28 provided with the base 29 for a drill press or the like.

It will be understood that the device is capable of many modificationsin structure and design, without departing from the spirit of theinvention, within the scope of the appended claims.

Having thus described the invention, what is claimed and desired to besecured by Letters Patent of the United States is:

1. A portable releasable base support comprising a length of angle ironadapted to be lodged against a column of a tubular scaffold, a chainelement for embracing said column, a pair of angle irons, smaller thansaid first mentioned angle iron spaced exteriorly on one segment of saidlarger angle iron, a solid cylindrical element normally held within saidsmaller angle irons the latter being keepers therefor, another angleiron disposed centrally and exteriorly of the other segment of saidfirst mentioned angle iron having a central notch therein registeringwith a like notch in said first mentioned angle iron segment, a threadedelement passed through a transverse bore in said solid cylindricalelement and attached by one end to said chain element, the free end ofsaid chain element being adapted to the aforementioned notches, and anut on said threaded element for drawing up the chain about a column.

2. A device as in claim 1 having an upstanding element above and fixedto said large angle iron, a knurled circular portion fixed at the top ofsaid upstanding element, a second circular knurled portion releasablyfixed by threaded means thereto, an arm integral with said secondcircular knurled portion, and means at the free end of said arm forreleasably adjustably securing the base of a drill press.

References Cited UNITED STATES PATENTS 1,231,635 7/1917 Nelson 248-284 X2,848,117 8/1958 Miller 211107 3,241,800 3/1966 Richter 248221 XCHANCELLOR E. HARRIS, Primary Examiner.

